My biggest question is finding the tree with the fewest number of character state changes on #24 and how to calculate the decay index. Im studying for an exam so Im not entirely interested in the answer of this particular question but an explanation of the process to get there. Thanks!

24) Perform parsimony analysis on the data set below. Calculate consistency index for each character What is the decay index for the anteater-bluebird clade? Draw a majority rule consensus tree for all three networks, rooted to dandilion. Show all work 12345 67890 anteater: aatgt agcga bluebird: aatgt ggcgg catepillar: agcgt gatgg dandilion: aacgt aatac 25) Construct a distance matrix from the character matrix below. Explain any conclusions you can dravw about clock-like evolution from the application of Sarich and Wilson's (1967) relative rate test. 12345 67890 cat: aatgt aacgg dog: agtgt aatgg fish: aacgt gttaa 24) Perform parsimony analysis on the data set below. Calculate consistency index for each character What is the decay index for the anteater-bluebird clade? Draw a majority rule consensus tree for all three networks, rooted to dandilion. Show all work 12345 67890 anteater: aatgt agcga bluebird: aatgt ggcgg catepillar: agcgt gatgg dandilion: aacgt aatac 25) Construct a distance matrix from the character matrix below. Explain any conclusions you can dravw about clock-like evolution from the application of Sarich and Wilson's (1967) relative rate test. 12345 67890 cat: aatgt aacgg dog: agtgt aatgg fish: aacgt gttaa